A miniature linear reciprocating friction and wear testing machine combined with in-situ observation of friction interface

Abstract

The invention relates to a friction interface in-situ observation-combined micro linear reciprocating friction wear tester. The tester comprises a workbench, a lower sliding table is arranged on the workbench, a force sensor is arranged on the lower sliding table, a lower sample is fixed on the force sensor, the lower sample has a plate-shaped shape and a horizontal plate surface, a crossbeam is arranged above the workbench, an upper sliding table is arranged on the crossbeam, an upper sliding table is arranged on the crossbeam, the upper sliding table is horizontally provided with an elasticplate in an overhanging manner, the plate surface of the elastic plate is horizontal, an upper sample is arranged at the plate end of the elastic plate, the upper sample is cylindrical, the lower endof the upper sample is a semispherical structure, the upper sample is a glass lens, a first adjusting mechanism is arranged on the upper sliding table, the first adjusting mechanism adjusts the uppersample to move up and down and makes the lower end of the upper sample abutted against or separated from the upper plate surface of the lower sample, a driving mechanism drives the lower sliding tableto horizontally move back and forth, and a microscope objective aligns to the upper end surface of the upper sample in order to observe the friction interface of the upper sample and the lower sample. The friction wear tester can observe the contact interface in the friction process in situ, and has a higher friction coefficient measurement precision than traditional like machines.

Description

technical field [0001] The invention relates to the technical field of testing equipment, in particular to a miniature linear reciprocating friction and wear testing machine combined with in-situ observation of a friction interface. Background technique [0002] The friction and wear test of the sample is to conduct an accelerated friction and wear test on the part of the workpiece or the prepared sample that actually faces the friction, so as to test its friction coefficient and wear rate curve in a short time, which is of great importance to the application research of the sample. to a more crucial role. In the actual operation of the friction and wear test, two samples to be tested are placed on the testing machine, and the surfaces to be tested of the two samples are bonded together, and one of the samples is pressurized by a pressurizing device, and pulled back and forth The sample, so as to realize the back and forth friction of two samples, under the set time and set...

AI Technical Summary

Problems solved by technology

However, this type of testing machine still has limitations such as large overall size, single direction of motion, difficulty in applying lubrication, and large error in friction coefficient measurement.

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